Perpendicular:

-------------------------------------------------------------------------------
   Finds perpendicular vectors to a such that Dot(b,a) = 0.
-------------------------------------------------------------------------------
   Form:
   b = Perpendicular( a )
-------------------------------------------------------------------------------

   ------
   Inputs
   ------
   a                   (3,:)    Input

   -------
   Outputs
   -------
   b                   (3,:)    Perpendicular

-------------------------------------------------------------------------------

Children:

Common: Math/Dot